1.

{:(,"Column A",,"Column B"),("(A)","Liquid displaced by solid" ,"(a)",10^(5)g),("(B)","1 quintal","(b)",10^(9)mg),("(c)","1 tonne","(c)","Unit of pressure"),("(D)", "kgwt "m^(-2) ,"(d)"," Volume of the solid"):}

Answer»

`A to a, B to b, C to c, D to d`
`A to d, B to c, C to b, D to a`
`A to d, B to a, C to b, D to c`
`A to d, B to b, C to c, D to a`

Solution :A -d "" When a body with density more than the density ofliquid is immwesed, the volume of the displaced liquid is EQUAL to the volume of the solid.
B- a ""One quintal = 100 kg
But one kg = 1000 g
`:.` One quintal = `100 xx 1000` " g "
One quintal = `10^(5)` " g 'C-b ""One tonne = 1000 kg
But one kg = 1000 " g "
And one g = 1000 mg
`:.` One tonne = `1000xx 1000xx 1000`" mg "
One tonne = `10^(9)` " mg "
D-c ""kgwt `m(-2)` = kgwt // ` m^(2)`
kgwt is unit of force and `m^(2)` is unit of AREA.
Force per unit area is called pressure.
`:.` kgwt `m^(-2)` is unit of pressure.


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